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Manual

Manual

2.6.11.  Partial search

Partial 3d similarity search – Find patterns und arrangements

Select one or more single features (plane, cylinder, etc.) and find all parts containing this feature. Special geometrical arrangements are taken into account in addition for the partial 3D similarity search.

Single feature selected

Single feature selected

Search results containing this feature

Search results containing this feature

In the following the Partial search shall be explained with the help of some examples.

Example 1: Search with partial segment (feature) of a part

  1. Load the reference part in the Part view and then call the Partial search.

    -> The respective dialog box is opened.

  2. With a single mouse-click, select one or more features.

    [Note] Note

    Always features of the same type (plane, cylinder, etc.) are compared. Distinctive and special features should be selected. A simple rectangular plane for example can be found nearly everywhere and expands the search space unnecessarily.

    In the example in hand the front plane is sufficient, because it is very distinctive so that just with this single feature matching parts can be found.

    -> Selected features are marked with red.

    -> Deselection of a feature is done with repeated single-click.

    Just as well you can select such a feature in a more complex part.

    [Note] Note

    If there is no selection, then all features are taken into account, which may lead to a considerable (exponential) increase of search time.

  3. Click on Commit.

    -> The view changes to Part view again.

    -> The Partial search is activated and is showing the desired part.

  4. Click on Start search.

    -> All parts containing the selected feature are found.

    Result

    Result

Example 2: Special geometrical arrangement

Special geometrical arrangements are taken into account for the calculation of similarity.

  • 1. case: Two planes forming a certain angle are selected.

    Selection

    Selection

    Due to the inclusion of the angle, the second search result is rated with low similarity in this example.

    Result

    Result

  • 2. case: A cylindric feature is selected.

    Selection

    Selection

    All parts containing such a cylinder are rated with high geometrical similarity.

    Result

    Result

[Note] Note

Before using the Partial search make sure that under $CADENAS_SETUP/geomsearch.cfg, in the key PartialSearchCatalogs, the catalog path which shall be used for the Partial search, is entered. Several catalogs can be entered separated by comma.

Example:

PartialSearchCatalogs=cat/_partial_search

Afterwards the geometrical index of the whole catalog has to be created or updated.